Cooling device for explosive-engines.



& 1 I /'/6'rhw i71/ No. 897,532. PATENTED SEPT. 1, 1908. R. HERMAN.

COOLING DEVICE FOR EXPLOSIVE ENGINES.

APPLICATION FILED AUG. 12, 1907.

.2 SHEETS-SHEET l.

No. 897,532. PATENTED SEPT. 1,1908. R. HERMAN.

COOLING DEVICE FOR EXPLOSIVE ENGINES.

LI T 2 0. APP GA ION FILED AUG 1 ,19 7 QS B S S ET 2 Allorney UNITED STATES PATENT OFFICE.

REINHOLD HERMAN, OF CRAFTON, PENNSYLVANIA.

COOLING DEVICE FOR EXPLOSIVE-ENGINES.

To all whom it may concern:

Be it known that I, REINHOLD HERMAN, a citizen of the United States of America, residing at Grafton, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Cooling Devices for Explosive-Engines, of which the following is a specification, reference beinghad therein to the accompanying drawing.

This invention relates to cooling device for use in connection with motor vehicles or for other purposes wherein it is found applicable and alms to rovide in a manner as hereinafter set fortl i a device of such class whereby the heated water from the jacket of the enine or other source is caused to circulate in thin film like manner successively through a plurality of conduits, these latter being so disposed .as not only to be subjected interiorly to a cooling medium but also exteriorly, such action quickly cooling the water as it circulates through the conduits, the currents of air passing eXteriorly through the conduits being so conducted as not to come in contact with the air which passes exteriorly or over the carriers. The direction of the air which passes exteriorly or over the conduits being such as to constitute a cooling medium for: the parts of the engine, owing to the fact that the cooling device is so dis osed with res ect to the engine as to enab e the air whic passes exteriorly or over the conduits to contact with the parts of the engine struction, combination and arrangement of arts hereinafter more fully described and ilustrated in the accom anying drawings, wherein is shown the pre ei'red embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto ap ended.

In the drawings wherein like re erence char- Specification of Letters Patent.

Patented Sept. 1, 1908.

Application filed August 12, 1907. Serial No. 388,157.

acters denote corres onding parts'through' the several views;' igure 1 1s a lan of a cooling device in accordance with t is invention. Fig. 2 is a perspective, and Fig. 3 is a vertical sectional view showing the arrangement of the, conduits.

When the cooling device is used in connection with a motor vehicle, it is arranged forwardly of the engine and is in communication with the water jacket of the engine cylinder for receiving the hot water therefrom and is furthermore in communication with a pump whereby the cooled water can be drawn rom the tubes andforced into the jacket of the cylinder. By Way of example an engine is shown of the four-cylinder type referred to generally by the reference character 1 and having the jackets of the cylinders connected together by the cou ling i es 2,

The pump is in icate by the reference character 3 and from which leads a conducting pipe 4 to the jacket of the rear cylinder. From the acket of the forward cylinder stands a discharge pipe 5 having" attached thereto a two-way coupling 6, with which communicates the hot water conducting pipes 78 .which open into the conduits of the cooling device in a manner as hereinafter referred to.

A cooling device in accordance with this invention comprises groups of sets of water and air conduits, the sets of each group extending in an opposite direction with respect to the sets of the other group, the sets of each group furthermore extending at an inclination, the sets of each grou are sup orted at the inner end in a vertically eXten ing sub stantially V-sha ed pocket-forming member Suc member is formed of a recfor the air.

bent in a substantially V- tangularplate shaped manner support the-inner end of the sets of one group which is referred'to generally by the reference character 10 and the other leg 11 of so that one leg 9 thereof will said late is adapted to support the inner outer tubes 13 and a plurality of inner tubes 14.. These latter-are arranged within the former and the diameter of the latter with respect to the former are such as to form a hot water.

contracted passage 15 for. the passage of the The tubes 13 constitute the conduits for the passage of the hot water, while the tubes 14 constitute the air conduits. The tubes 13 are of less length than the tubes 14, these latterrojecting from each end of the tubes 13. e inner end of the tubes 14 roject throu h the legs 911 of the pocketorming mem er and are bell-sha ed as at 16. The inner ends of the tubes 13 a ut against the legs 911. The tubes 13 are so disposed as to alternately communicate with each other and for this purposecontracted coupling pipes 17 are provided for establishing communication between the tubes. Betweenthe ends of the tubes 13 which are not connected by the branch pipe 17 the tubes 13 are formed with laterally extending lu s 18 which are connected together by the oldfast devices 19. Lugs 18 and devices 19 not only constitute a means'for connecting the tubes 13 together, but further provide means for spacing the tubes 13 apart. The branch pipe 17 also provides means for. connecting the tubes 13 together as well as means for s acing the tubes apart at theend op osite that to which the lugs 18 are connected? A means is rovided for supporting the sets of tubes of each group and whichconsists of casting or otherwise securing annular members 20 to the pipes 17 and extending through the members 20 are the upri hts 21 which are connected to the members t roughthe medium of the set screws 22 or other suitable devices As shown each of the legs 9-11 of the pocket-forming member su ports three sets of air and water conduits, but this number can be increased or diminished as desired. The conducting pipes 78 are rovided with branches 23 which open into the upper tube of each set and by such arrangement the hot water is conducted to the water conduits and travels through the water conduits in a sinuous manner until it reaches the lower conduits of the sets and from there it is let oil? by the outlet pipes 24, which communicates with the branch pipes 25,26, these latter opening into a two-way coupling 27 which is attached to the suction pipe 28 of the pump.

During the travel of the water through the tubes 13, it is cooled by the passage of air over and between the said tubes 13 and through the tubes 14. As the vehicle travels the air will be pocketed by the supporting member for the sets of conduits and will pass from the pocket into the bell-shaped mouths of the tubes 13 .and exhausted from the tubes 14 at the rear end thereof. The passage of the air when acting as a cooling medium for the water is indicated by the arrows in Fi 1. The air which is used for interiorly coo ing does not come in contact with the air used for exteriorly coolin this latter air passes over and between t e tubes 13; owing to such fact, it can then pass to cool the parts of.

the engine, the air passin rapidly over and through the tubes 13 wil notbe heated to such an extent as to im air its function for the cooling of the parts of the engine. Owing to the manner in which the air is conducted and used as a cooling medium for the hot Water, it is evident that the water will be quickly cooled as the water conduits are not only subjected to a eripheral cooling but also to an internal coo ing.

What I claim is:

1. A cooling device for the purpose set forth comprising groups of sets of combined water and air conduits, the water conduits of each set, of each group being suitably spaced apart and the air conduits being open at each I group being suitably spaced apart and the air conduits open" at each end and dis )osed within the water conduits, the corn ined conduits ofeach roup extending in an opposite direction wit respect to the conduits of the other group, and a combined supporting and-air pocket-forming member interposed between the group.

3. A cooling device for the purpose set A forth comprising groups of sets of water conduits, the sets of each group extending at an inclination and in opposite directions with respect to the sets of the other group, thewater conduits of each set alternately communicating with each other, and an air conduit extending through each of the water conduits and of a diameter with respect to the water conduit to form a contracted water passage, each of said air conduits opening at each end directly into the atmosphere whereby the air will be conducted by the sets of air conduits of each group'in the same general direction and i11 currents independent of each other.

4. A cooling device for the purpose set forth comprising groups of sets of water conduits, the sets of each group extending at an inclination and in an opposite direction with respect to the sets of the other group, the water conduits of each set alternately communicating with each other, and an air 'conduit extending .through each of the water conduits and of a diameter with respect to the water conduit to form a contracted water passage, each of said air conduits having-a bell-shaped mouth, each of. said ain conduits opening at each end directly into the atmosphere whereby the air will be conducted by the sets of air conduits of each group in the same'general direction and in currents independent of each other.

5. A' cooling device for the purpose set forth comprising groups of sets of water conduits, the sets of each group extending at an inclination andin an opposite direction with respect to each other, the water conduits of each set at alternative ends communicating with each other, an air conduit extending through each of the water conduits and of a diameter with respect to the water conduits to form a contracted water passage, and a combined supporting and air pocket-forming means interposed between the groups of sets of water conduits and connected to the air' conduits.

6. A cooling device for the purpose set forth comprising diagonally-disposed water conducting means, means whereby said water conducting means is cooled externally by the passage of air, annularly-disposed means whereby said water is cooled internally by the passage of air, said means opening at each end directly into the atmosphere and deflecting the air so it will not admix with the air used to cool the water conducting means externally and thereby prevent the utilization of that air for cooling after having.

once performed such function.

7. A device for the purpose set forth comprising the combination with a support, of a plurality of conduits for conducting water in a sinuous manner and communicating with each other at alternative ends, said conduits disposed diagonally with respect to said supports, air-conduits extending through each of said'water conduits, said air conduits 0 ening at each end directly into the atmosp ere and inde )endent of each other and thereby prevent the utilization of that air for internal cooling after having once performed such function, and means whereby said water conduits are cooled externally by the passage of air. 1

8. A cooling device for the urpose set forth comprising groups of air and water conduits, the water conduits of each group being suitably spaced apart and communicating with each other at alternative ends, said air conduits disposed within said water conduits and opening at each end directly into the atmosphere and a combined storing and air pocket forming member interposed between the groups.

9. .A cooling device for the purpose set forth, comprising groups of sets of combined water and air conduits, the sets ofeach group arranged in parallelism with respect to eac other and extending diagonally with respect to a suitable support, the sets of "one group extending in an opposite direction withrespect to the sets 0 the other group, said air conduits projecting from each end of the water conduits and opening at each end directly into the atmosphere and thereby prevent the utilization of that air for internal cooling after having once performed such function, the water conduits of each set at alternative ends communicating with each other.

10. A cooling device for the purpose set forth, comprising groups of sets of combined water and air conduits, the sets of each group arranged in parallelism with respect to each other and extending diagonally, the sets of one group extending in an opposite direction with respect to the sets of the other group, said air conduits projecting from each end of the water condultsfthe water conduits of each set at alternative ends communicating with each other, and a pocket forming member interposed between the groups and mounted upon one end of the air conduits.

11. A cooling device for the urpose set forth,-comprising groups of sets 0 combined water and air conduits, the sets of each grou arranged in parallelism with respect to eacfi other and extending diagonally, the sets of one group extending in an opposite direction with respect to the sets of the other group, said air conduits projecting from each end of the water conduits, the water conduits of each set at alternative ends communicating with each other, and a pocket forming member interposed between the groups and mounted upon one end of the air conduits, said pocket forming member substantially V-shape in contour and that end of the air conduits upon which the pocket forming member is mounted bein bell-shape.

12. A cooling device or the pur ose set forth comprising the combination wit a sup port, of groups of sets of combined water and air conduits iagonally disposed with respect to said support, the sets of one group extend ing in an op osite direction with respect to the sets of t e other group, the water conduits of each set of each grou being suitably spaced apart and the air con uits being open at each end, disposed Within the water conduits, and said conduits o ening directly into a the atmosphere and there y prevent the utiliposed within the air conduits said air conduits opening directly into the atmos here and thereby revent the utilization '0 that air for interna cooling after having once performed such function, the combined conduits of each group extending in an op osite direction with respect to the combiner conduits of the other group, the water conduits of each &

set being so disposed with respect to each other as to form air passages between them whereby said water conduits will be externally cooled.

14. A cooling device for the pur ose set forthcomprising the combination wit a support, of groups of sets of combined water and air conduits diagonally disposed with respect to said support, the sets of one group extending in an o posite direction with respect to the sets of the other group, means for spacing the water conduits of each set of each group apart, said air conduits of greater length than the water conduits and each having a bell shaped mouth, the air conduits of each set having the ends thereof opening directly into the atmosphere and thereby preventing the utilization of that air for internal cooling after having once performed such function, a common water supply pipe for each group, separate inlet means between each set and the supply pipes, and a separate outlet means for each set.

In testimony whereof I aflix my signature in the presence of two witnesses.

REINHOLD HERMAN. 

